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Leonardo's Mirror & Other Puzzles (Mastermind Collection)
1402716672 pdf 1402716672 pdf The picture in the puzzle looks like a simple flower, with four red petals, inside a square. But to solve the mathematical problemfinding the total area of those petalsyoull have to think outside the box and do some fast figuring. Some of these great puzzles have ancient roots, others come from Leonardo da Vincis work and every ones a classic. Not only will these conundrums provoke hours of thought, but the images look great, too, with pictures that range from cartoon rabbits to time-lapse photography of the sky.